Analysis
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max time kernel
150s -
max time network
49s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
03-12-2022 16:26
Static task
static1
Behavioral task
behavioral1
Sample
28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa.exe
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Size
124KB
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MD5
39b9051bb19d09a8ff0c3fae38a43892
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SHA1
dec29dacffdb9dfafad92122105c81309949a56c
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SHA256
28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa
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SHA512
ee44d42a439a3f2d2086a679b296a02f5295e19aa7c8c88447ea7d1590ab7f704c8f39a2f11763fb5cb05e5ae1c3f0248cc0745ef94121085874182736368729
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SSDEEP
1536:AkE/hwRvuBxeDtMYHa27J14ltxporZ45i8NeG0h/E:xE/hwRvkeV6gJ1uCt45OM
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" weoak.exe -
Executes dropped EXE 1 IoCs
pid Process 892 weoak.exe -
Loads dropped DLL 2 IoCs
pid Process 1200 28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa.exe 1200 28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa.exe -
Adds Run key to start application 2 TTPs 54 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /d" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /s" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /R" weoak.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /V" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /Q" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /B" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /O" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /q" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /v" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /T" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /Z" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /z" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /t" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /p" 28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /K" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /j" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /P" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /L" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /a" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /I" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /F" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /J" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /c" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /b" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /o" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /u" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /y" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /x" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /p" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /D" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /N" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /f" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /r" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /W" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /Y" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /h" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /E" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /w" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /l" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /S" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /G" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /n" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /M" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /e" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /i" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /g" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /A" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /H" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /k" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /U" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /m" weoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\weoak = "C:\\Users\\Admin\\weoak.exe /X" weoak.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1200 28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe 892 weoak.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1200 28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa.exe 892 weoak.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1200 wrote to memory of 892 1200 28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa.exe 27 PID 1200 wrote to memory of 892 1200 28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa.exe 27 PID 1200 wrote to memory of 892 1200 28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa.exe 27 PID 1200 wrote to memory of 892 1200 28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa.exe"C:\Users\Admin\AppData\Local\Temp\28ddf18816e7cd08a8da145a4c74ca59332e847ccef2d97086544da22f0b32aa.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1200 -
C:\Users\Admin\weoak.exe"C:\Users\Admin\weoak.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:892
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
124KB
MD53ae3c00c331ef691c4154aa344159b12
SHA1c44f9af6837970bb57cd477aa5b718fcb9fcf12e
SHA256339832d7cc25cc4e3b9be15f1b9da9a47fea1b176f2486d363e09fce7114c244
SHA51232fc40e2ee5a6e524010a5120c36bd19f134e1f9d0a49417eb1ea3c8dd353f257f8d073bd359fb3f79a728cd7c95bbc482e1488df42d6780c21efa5c69e990bd
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Filesize
124KB
MD53ae3c00c331ef691c4154aa344159b12
SHA1c44f9af6837970bb57cd477aa5b718fcb9fcf12e
SHA256339832d7cc25cc4e3b9be15f1b9da9a47fea1b176f2486d363e09fce7114c244
SHA51232fc40e2ee5a6e524010a5120c36bd19f134e1f9d0a49417eb1ea3c8dd353f257f8d073bd359fb3f79a728cd7c95bbc482e1488df42d6780c21efa5c69e990bd
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Filesize
124KB
MD53ae3c00c331ef691c4154aa344159b12
SHA1c44f9af6837970bb57cd477aa5b718fcb9fcf12e
SHA256339832d7cc25cc4e3b9be15f1b9da9a47fea1b176f2486d363e09fce7114c244
SHA51232fc40e2ee5a6e524010a5120c36bd19f134e1f9d0a49417eb1ea3c8dd353f257f8d073bd359fb3f79a728cd7c95bbc482e1488df42d6780c21efa5c69e990bd
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Filesize
124KB
MD53ae3c00c331ef691c4154aa344159b12
SHA1c44f9af6837970bb57cd477aa5b718fcb9fcf12e
SHA256339832d7cc25cc4e3b9be15f1b9da9a47fea1b176f2486d363e09fce7114c244
SHA51232fc40e2ee5a6e524010a5120c36bd19f134e1f9d0a49417eb1ea3c8dd353f257f8d073bd359fb3f79a728cd7c95bbc482e1488df42d6780c21efa5c69e990bd